Product Introduction
When your industrial control system demands reliable switching of diverse loads, the GE IC694MDL930 relay output module delivers. Part of the PACSystem RX3i family, this module provides eight individually isolated Form A (Normally Open) outputs. Each relay handles both AC and DC voltages, making it a flexible choice for controlling motors, solenoids, and indicators. Originally from GE Intelligent Platforms, now supported by Emerson Automation, the IC694MDL930 remains a trusted component in automation networks.
Technical Specifications Breakdown
The IC694MDL930 offers key specifications that define its performance. Each of the eight outputs switches loads from 5 to 30 VDC or 5 to 250 VAC, with a nominal voltage of 24 VDC or 120/240 VAC. The switching current reaches 4.0 Amps per point for resistive loads, and 2 Amps for pilot duty. Minimum load is 10 mA per point. The module draws 6 mA from the 5 VDC backplane bus and 70 mA from the 24 VDC relay bus when all outputs are on. Response time is 15 ms for both on and off transitions. Point-to-point isolation is rated at 250 VAC continuous and 1500 VAC for one minute. These parameters ensure the module can handle a wide range of field devices safely.
Industry Applications
In manufacturing lines, the IC694MDL930 controls conveyor motor starters and indicator lights. Its isolated outputs allow mixing voltage types on one module—for example, 24 VDC solenoids on some channels and 120 VAC pilot lights on others. In packaging machinery, the module actuates pneumatic valves and alarms, leveraging its 4A resistive capacity for reliable switching. The dry-contact nature of each Form A output simplifies wiring to different control circuits.
Installation & Setup Guidance
Install the IC694MDL930 into any RX3i or Series 90-30 baseplate I/O slot. Ensure the backplane provides 5 VDC and 24 VDC power for relay operation. Connect field wiring to the terminal block, observing the polarity for DC loads. Each output has a separate common terminal, so you can wire different voltage sources per channel. No fuse or RC snubber is included, so external protection may be needed for inductive loads. Always verify that the total module load does not exceed 20 Amps for UL installations.
Maintenance & Reliability
The relay contacts have a life expectancy of 50,000 to 1,000,000 operations, depending on load type and voltage. For longest life, operate within the 4A resistive limit and avoid switching loads below 10 mA. Periodically inspect the module for dust accumulation and ensure proper ventilation. The LED indicators on the front panel show each output's status, simplifying troubleshooting. Following these practices maximizes uptime and reduces replacement costs.
Compatibility & Integration
The IC694MDL930 works with PACSystems RX3i CPUs and Series 90-30 controllers. It functions as local I/O in the CPU rack or as remote I/O in expansion racks using a communication adapter. The module is compatible with Emerson's current automation ecosystem. No special software configuration is needed beyond standard I/O mapping in the programming environment.
Selection Guide & Purchasing Advice
Before purchasing the IC694MDL930, verify your system's backplane type and available slot. Confirm that your power supply can deliver the required 6 mA at 5 VDC and 70 mA at 24 VDC for the relay bus. If you need fused outputs or snubber protection, consider external modules. SpareTechPLC stocks this module and can advise on current lifecycle status and availability. Contact us to confirm compatibility with your existing PACSystem RX3i installation.
